Reamer.



No. 761,055. PAI'VIENTED MAY 31, 1904.

E. c. ANGELL.

REAMERr APPLICATION FILED SEPT. 9. 1903.

.10 MODEL.

ATTOR NIY U ITED, "STATES Patented May 31, 1904.

PATENT OFFICE.

- ANGELL MANUFACTURING COMPANY, OF FRANKLIN, PENNSYLVANIA,

A CORPORATION OF PENNSYLVANIA.

REAMER.

SPECIFICATION formingpart of Letters Patent No. 761,055, dated. May 31, 1904. Application filed Septemherfl, 1903. Serial No. 172,500. (No model.)

I To all whom itirrtwy concern:

-Be it known that I, EDWARD O. ANGELL, a citizen of the United States, residing at Franklin, in the county of Venango and State of- 5 Pennsylvania, have invented certain new and useful Improvements in .Reamers, of which the following is a specification, reference be: ing had therein to the accompanying drawmgs. J

I My invention relates to an improved reamer for valve-seats and other like uses and will be fully understood by a reference to the accompanying drawings, which form a part of this specification, and in which Figure 1 is a side elevation of my reamer,

showing the same mounted in a suitable holder or-frame for operating the same. Fig. 2 is a right side view of Fig. 1. Fig. Sshows a smaller reamer mounted in the same holder shown in Fig. 1. Fig. 4 is a sectional view of a valve-seat such as my-reamer is primarily designedto operate upon, there being a valve shown in position upon the seat. Fig. 5 is a sectional view upon line 5 5 of Fig. 2. 5 The same reference-figures indicate identical parts in'the several views;

It is the general practice throughout the oil-fields to use in the working barrel of an oil-well a valve of the ball type, with a seat similar to that shown in Fig. 4, and as a considerable quantity of grit, sand, and other foreign substance is mingled with the oil as it is pumpedfrom the well the valve-seat soon becomes defaced and untrue by reason of said --grit, sand, &c..,scoring and abrading the same.

Hence the necessity often recurs of r'efacing or rereaming the same to keep the valve and seat up to their proper efficiency. So far as I am aware about the only implementat pres- 4 ent used for this purpose is a reamer having a fluted hemispherical end which, though eflicient when new, is very short-lived and expensive. 1 It is the object of my invention to provide I a reamerthat will be fully as efiicient as any other device of this kind upon the market and will at the same time possess the advantage and superiority of being so constructed that a new cutting-face is immediately available when this becomes necessary.

A The construction of my device is substantially as follows: Throu'gh'a ball 1 I drill a central hole for the receptionof an arbor 2. I then form upon the periphery of said ball at right angles to or perpendicular with. said holes plurality of parallel grooves 3, and the original surface remaining-- between said grooves constitutes cutting-teeth 4, and an efficient reamer is thus formed which is adapted to operate equally well when revolved horizontally in either direction.

When the reamer isrevolved slightly upon its arbor, a new cutting-face is brought into action, it thus being apparent that many new cutting-faces may be brought into requisition in the one implement, making the same equal in durability and efliciency to as many new implements, whose combined expense would be many times that of the cost of one of my own. The grooved ball, as above described, is the essential feature of my invention; butinorder to more clearly illustrate and specify the use and application of same I have shown and will describe one form of frame or holder which is 7 5 .well adapted for use with my reamer. Such holder consists of a shank 5, which may be either a round taper shank for use in a drill-press, or

it may be square and adapted for use in an ordinary hand-brace. At the lower end a: said shank and at one side thereof an arm 6 extends outwardly and downwardly, and at its lower end said arm is adapted to the reception of an arbor 2. This arbor is of such length and location that when-a reamer of the largest diameter used is placed thereon the same will be exactly centered beneath the shank 6, as shown in Figs. 1 and 5. When reamers of a smaller diameter are to be used,-'a washer 7 is previously placed uponthe arbor to properlycenter the reamer.

The 'arbor 2 is screwthreaded at the outer end, and-a clamping-nut a;

8 is screwed thereon adapted to bear against the reamer and to'hold the same rigidly in place.

- 9S Extending downfrom' the under side of I shank 5 is a backing-up screw 9, adapted to ent, is

1. A reamer consisting of a ball adapted to the reception of an arbor there being a plurality 10f grooves formed in the periphery of said bal I 2. A reamer consisting of a ball having a plurality of parallel grooves formed in its pejriphery, means for adjustably mounting the same in a holder upon the axis perpendicular to said grooves.

3. A reamer consisting of a'ball having'a portion of its periphery removed in such manner that the remaining portion of its surface shall form cutting-teeth, in combination with a suitable operating-holder adapted to the adjustable mounting of said ball.

4. In a reamer, a ball having a plurality of parallel grooves formed in its periphery, a hole centrally drilled through said ball at the axis perpendicular to said grooves, a frame or holder having an arbor thereon adapted to the reception of said reamer, means of securing the reamer to said arbor and means of relieving said arbor of the thrust incidental to feeding said reamer to its Work.

In testimony whereof I afix my signature in presence of two witnesses.

EDWARD (J. ANGEL -Witnesses:

WM. B. GRIFFEN, E. R. INMAN. 

